Home / 73,028.36-100,779.92-42,831.56

Finding the Fourth Proportional to 73,028.36, 100,779.92 and 42,831.56

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Solution

The fourth proportional to 73,028.36, 100,779.92 and 42,831.56 is: 59,108.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,028.36 : 100,779.92 = 42,831.56 : x
  2. Step 2: Convert to fraction form
    73,028.36/100,779.92 = 42,831.56/x
  3. Step 3: Cross multiply
    73,028.36x = 100,779.92 × 42,831.56
  4. Step 4: Simplify right side
    73,028.36x = 4,316,561,190.28
  5. Step 5: Solve for x
    x = 4,316,561,190.28/73,028.36
  6. Step 6: Final answer
    x = 59,108.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.